Thermally stable monolith catalyst for reforming reaction

Abstract

The present invention relates to a monolith catalyst for reforming reaction, and more particularly, to a thermally stable (i.e. thermal resistance-improved) monolith catalyst for reforming reaction having a novel construction such that any one of Group 1A to Group 5A metals are used as a barrier component in the existing catalyst particles to inhibit carbon deposition occurring during the reforming reaction in a process for formation of a reforming monolith catalyst while improving thermal durability as well as non-activation of the catalyst due to a degradation.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to Korean Patent Application No. 10-2016-0095541, filed on Jul. 27, 2016 in the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference.FIELD OF THE INVENTION[0002]The present invention relates to a monolith catalyst for reforming reaction, and more particularly, to a thermally stable (i.e. thermal resistance-improved) monolith catalyst for reforming reaction having a novel construction, such that any one of Group 1A to Group 5A metals are used as a barrier component for preventing a growth of active particles in the existing catalyst particles to inhibit carbon deposition caused by the growth of catalyst particles occurring during the reforming reaction in a process for formation of a reforming monolith catalyst while improving thermal durability as well as non-activation of the catalyst due to a degradation.BACKGROUND OF THE INVENTION[0003]Due to a global w...

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Benefits of technology

[0013]In order to solve the problems entailed in the conventional monolith catalyst for reforming reaction as described above, the present invention is directed to eliminating non-activation of a catalyst due to the degradation such as a decrease in activation points, an occurrence of carbon deposition, etc. caused by sintering a catalyst active metal component used in the existing monolith catalyst during reforming reaction to grow particles.

[0014]Accordingly, it is an object of the present invention to provide a new monolith catalyst for reforming reaction, which is capable of preventing non-activation of the catalyst due to carbon deposition and degradation, since a proper amount of any one of Group 1A to 5A metals as a barrier preventing the growth of active particles is used on the catalyst coated on monolith during the reforming reaction.

[0018]According to the present invention, compared to the existing monolith catalyst for reforming reaction, since Group 1A to 5A metals as a barrier component are contained in a form of stable metal or metal oxide, non-activation of a catalyst due to carbon deposition or degradation on the coated catalyst may be considerably prevented. Preferably, as the metal barrier component, at least one selected from Li, Ca, Mg, Ba, Y, La, Er, Pr, Ce, Nd, Sn, B, Al, Ga, In, Si, Sb, Bi, Fe, W and Re is effectively used.

[0019]Further, the catalyst according to the present invention may considerably reduce a used amount of catalyst, compared to the existing monolith catalysts.

Problems solved by technology

Among those, the Korean Government has established the goal of 37% decrease in greenhouse gas, compared to the estimated exhaust for 2030, thus increasing a burden on the industry.

Such a carbon dioxide reforming reaction is a strong endothermic reaction wherein a theoretical maximum conversion rate at a predetermined temperature, that is, an equilibrium conversion rate is increased at a higher temperature, and thus the reaction occurs at a temperature of 650° C. or more, and is generally progressing at a high temperature of 850° C. However, the reaction at the high temperature described above enables catalyst particles to be easily sintered, thus decreasing a point of activation (“activation point”) of catalyst, while simultaneously occurring carbon deposition significantly deteriorates catalytic activity.

However, the above problems, that is, carbon deposition and non-activation of a catalyst due to the degradation under a high temperature reaction condition (800° C. or more) have not yet been overcome.

However, these catalysts also have not yet basically solved the above-described problems occurring during the reforming reaction.

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